d3-jsnext/test/interpolate/round-test.js

d3, but futuristic

require( 'babel/register' );

var vows = require("vows"),
    load = require("../load"),
    assert = require("../assert");

var suite = vows.describe("d3.interpolateRound");

suite.addBatch({
  "interpolateRound": {
    topic: load("interpolate/round").expression("d3.interpolateRound"),
    "interpolates integers": function(interpolate) {
      assert.strictEqual(interpolate(2, 12)(.456), 7);
      assert.strictEqual(interpolate(2, 12)(.678), 9);
    }
  }
});

suite.export(module);